CN110669290A - Preparation method of mildew-proof fire-resistant MPP cable conduit - Google Patents
Preparation method of mildew-proof fire-resistant MPP cable conduit Download PDFInfo
- Publication number
- CN110669290A CN110669290A CN201910934221.9A CN201910934221A CN110669290A CN 110669290 A CN110669290 A CN 110669290A CN 201910934221 A CN201910934221 A CN 201910934221A CN 110669290 A CN110669290 A CN 110669290A
- Authority
- CN
- China
- Prior art keywords
- portions
- driving
- cable duct
- lower clamp
- polypropylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
- B24B5/045—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally with the grinding wheel axis perpendicular to the workpiece axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/50—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground, e.g. strings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a preparation method of a mould-proof fire-resistant MPP cable pipeline, which comprises the following steps: step one, weighing the following raw materials in parts by weight: 100 portions of polypropylene, 3 to 10 portions of reinforcing master batch, 0.1 to 5 portions of compatilizer, 0.1 to 5 portions of nucleating agent, 0.1 to 5 portions of antioxidant, 0.1 to 5 portions of impact resistant agent and 0.1 to 5 portions of mildew preventive; step two, putting the raw materials into a stirrer together, stirring at the speed of 600-; the mildew preventive is added, so that the defect that the silver ion mildew preventive is expensive is avoided, and the silver ion mildew preventive has the advantages of good heat resistance, wide antibacterial spectrum, long validity period, no toxicity, no harm and the like; the mildew preventive contains attapulgite clay, which is a clay mineral with crystalline hydrated magnesium aluminum silicate as a main component, and the crystal is a needle-shaped and fibrous aggregate and has a unique layer chain structure characteristic.
Description
Technical Field
The invention relates to the technical field of cable ducts, in particular to a preparation method of a mould-proof and fire-resistant MPP cable duct.
Background
The non-excavation is a new construction technology for laying, replacing and repairing various underground pipelines by utilizing various rock-soil drilling equipment and technical means under the condition of excavating a tiny part of the earth surface (generally indicating small-area excavation of an inlet and an outlet) in the modes of guiding, directional drilling and the like, does not obstruct traffic, does not damage green lands and vegetation, does not influence the normal life and work order of shops, hospitals, schools and residents, solves the interference of the traditional excavation construction on the life of the residents, and the damage and adverse effect on the traffic, the environment and the foundation of surrounding buildings, thereby having higher social and economic effects; due to the superiority of the trenchless technology, the urban trenchless laying of 10KV high-voltage wires is more and more, and the market demand of the power cable protection pipe is more and more.
Patent No. CN106589610A discloses an MPP power pipe polymer and a method for preparing the same, but the MPP power pipe has a fire-resistant function, but has poor fire resistance, is unstable, and has no function of preventing mildew, and cannot be fixed during the process of preparing a cable duct, so that the cable duct is easy to move during the polishing process, the polishing efficiency is low, the effect is poor, and the polishing disc is inconvenient to adjust, and the operation is troublesome.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a preparation method of a mould-proof and fire-resistant MPP cable duct.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of a mould-proof fire-resistant MPP cable duct comprises the following steps:
step one, weighing the following raw materials in parts by weight: 100 portions of polypropylene, 3 to 10 portions of reinforcing master batch, 0.1 to 5 portions of compatilizer, 0.1 to 5 portions of nucleating agent, 0.1 to 5 portions of antioxidant, 0.1 to 5 portions of impact resistant agent and 0.1 to 5 portions of mildew preventive;
step two, putting the raw materials into a stirrer together, stirring at the speed of 600-;
putting the obtained blend into a double-screw extruder, and carrying out melting, plasticizing, shearing and granulating processes to obtain a primary cable pipeline;
and step four, placing the primary cable duct on a grinding machine for grinding, firstly placing the primary cable duct on a lower clamp, then covering the lower clamp, inserting the inserting plate between the sliding plate and the lower clamp, loosening the spring, fixing the primary cable duct through the matching of the second teeth, the first teeth and the third teeth, then driving a second servo motor to drive a second lead screw to rotate, further driving the mounting plate and the grinding disc to descend through a second sliding block, and grinding the disc to grind so as to finally obtain the MPP cable duct.
As a further scheme of the invention: the mildew preventive is prepared by the following steps:
(1) preparing raw materials: attapulgite clay and 0.8mol/L nitric acid solution; 0.03-0.07 mol/L of copper nitrate solution;
(2) acid activation: mixing attapulgite clay and 0.8mol/L nitric acid solution according to a solid-to-liquid ratio of 1:9, stirring uniformly in a mashing machine at 15000rpm for 0.2min, and then reacting for 5-6 hours at 50 ℃; stirring at 160 +/-10 rpm during the reaction process;
(3) centrifuging and drying for the first time: dehydrating by using a centrifuge after the reaction is finished, washing twice by using distilled water according to the solid-to-liquid ratio of 1:9, centrifuging, and drying at 105 +/-3 ℃;
(4) loading: mixing the attapulgite clay dried in the step (3) with 0.03-0.07 mol/L copper nitrate solution according to a solid-to-liquid ratio of 1:9, uniformly stirring in a crusher at 15000rpm for 0.5min, and then reacting for 5-6 hours at 80 +/-3 ℃; stirring at 160 +/-10 rpm during the reaction process;
(5) and (3) centrifuging and drying for the second time: after the reaction, the mixture was centrifuged, dried at 105. + -. 3 ℃ and pulverized to 200 mesh and 325 mesh.
As a further scheme of the invention: the polypropylene is at least one of block copolymerization polypropylene or isotactic copolymerization polypropylene.
As a further scheme of the invention: the molecular weight of the polypropylene block copolymer polypropylene is 100-140 ten thousand, and the melt flow rate is 0.2-2.0g/10 min.
As a further scheme of the invention: the reinforced master batch is a blend comprising 10-20 parts of active talcum powder, 5-15 parts of PPH, 1-3 parts of coupling agent and 1-2 parts of dispersing agent, and is put into a double-screw extruder to be melted, plasticized, sheared, granulated and the like to obtain the reinforced modified master batch.
As a further scheme of the invention: the compatilizer is a graft block copolymerization PP compatilizer; the nucleating agent is a beta nucleating agent; the antioxidant is a blending granulation material of linear low density polyethylene and the antioxidant; the anti-impact agent is high-density polyethylene.
As a further scheme of the invention: the grinding machine comprises the following working steps: the method comprises the steps of firstly placing a primary cable duct on a lower clamp, then covering the lower clamp, inserting a plugboard between a sliding plate and the lower clamp, loosening a spring, fixing the primary cable duct through the matching of second teeth, first teeth and third teeth, then driving a first servo motor, driving a first lead screw to rotate, driving a polishing disc to move back and forth through a first sliding block, driving a third servo motor, driving the third lead screw to rotate, driving a polishing disc to move horizontally through a third sliding block, then driving a second servo motor, driving a second lead screw to rotate, further driving a mounting plate and the polishing disc to descend through a second sliding block, rotating the polishing disc to polish, and finally obtaining the MPP cable duct.
As a further scheme of the invention: the polisher comprises a base, side plates, a clamping mechanism and a polishing mechanism, wherein the side plates are symmetrically installed at the top of the base, the clamping mechanism is arranged at the center of the top of the base and comprises a lower clamp, a lower groove, an upper clamp, an upper groove, a first tooth, a second tooth, a third tooth, a spring, a sliding plate and an inserting plate, the lower clamp is fixed at the top of the base, the lower groove is formed in the top of the lower clamp, the first tooth is fixedly installed on one side of the lower clamp, the upper clamp is movably linked to one end of the top of the lower clamp, the upper groove is formed in the bottom of the upper clamp, the inserting plate is fixedly installed at one end of the bottom of the upper clamp, the second tooth is fixedly installed on two sides of the inserting plate, one side of the spring is installed on one side plate, the sliding plate is fixedly installed on the other side of the spring, and the third tooth is, the sliding plate is connected with the base in a sliding mode, and the second teeth, the third teeth and the first teeth are matched;
the polishing mechanism comprises a first fixing plate, a first sliding block, a first servo motor, a first guide rod, a first lead screw, a second fixing plate, a second lead screw, a second guide rod, a polishing disc, a mounting plate, a second sliding block, a third servo motor, a second servo motor, a third fixing plate, a third sliding block and a third lead screw, wherein the two first fixing plates are respectively mounted on the two side plates; fixed mounting has the third fixed plate on the first slider, one side fixed mounting of third fixed plate has third servo motor, third servo motor's output shaft is connected with the third lead screw, the third slider that runs through of third lead screw rotates with the third fixed plate to be connected, the vertical second fixed plate of installing on the third slider, second fixed plate one side fixed mounting has second servo motor, second servo motor's output shaft and second lead screw, the second lead screw runs through the second slider and rotates with the second fixed plate to be connected, the bilateral symmetry of second lead screw installs the second guide bar, the second guide bar runs through the second slider, second slider one side horizontal installation has the mounting panel, the bottom of mounting panel is provided with the polishing dish, the polishing dish is by motor drive.
The invention has the beneficial effects that: the mildew preventive is added, so that the defect that the silver ion mildew preventive is expensive is avoided, and the silver ion mildew preventive has the advantages of good heat resistance, wide antibacterial spectrum, long validity period, no toxicity, no harm and the like; the mildew preventive contains attapulgite clay, which is a clay mineral with crystalline hydrated magnesium aluminum silicate as a main component, and the crystal is a needle-shaped and fibrous aggregate and has a unique layer chain structure characteristic. The attapulgite clay has excellent properties of dispersion, temperature resistance, salt and alkali resistance and the like and higher adsorption decoloring capacity; the polypropylene in the invention is block copolymerization polypropylene or isotactic copolymerization polypropylene, the crystallinity of the isotactic copolymerization polypropylene is up to more than 95 percent, the molecular arrangement is regular, and the crystallization is easy; the long molecular chain of the block copolymerization polypropylene is formed by alternately arranging propylene homopolymer chain segments and ethylene homopolymer chain segments; therefore, the polypropylene has the characteristics of high crystallinity, high strength, high toughness, high melting point and the like;
the invention comprises the following steps in the process of preparing the pipeline: firstly, a primary cable pipeline is placed on a lower clamp, then the upper clamp is covered, an inserting plate is inserted between a sliding plate and the lower clamp, a spring is loosened, the primary cable pipeline is fixed through the matching of a second tooth, a first tooth and a third tooth, the cable pipeline is prevented from moving in the polishing process, the subsequent polishing is facilitated, the polishing effect is better, the primary cable pipeline is smoother, otherwise, the primary cable pipeline can be loosened, and the operation and the use are facilitated; then, driving a first servo motor to drive a first screw rod to rotate, driving a polishing disc to move back and forth through a first slide block, driving a third servo motor to drive a third screw rod to rotate, driving a polishing disc to move horizontally through a third slide block, then driving a second servo motor to drive a second screw rod to rotate, further driving a mounting plate and the polishing disc to descend through a second slide block, rotating the polishing disc, polishing, and finally obtaining the MPP cable pipeline; the position of the polishing disc is convenient to adjust, the polishing disc is convenient to polish, the operation and the use are convenient, and the degree of automation is high.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic elevational view of a sander according to the present invention;
FIG. 2 is a schematic view of the overall construction of the grinding mechanism of the present invention;
FIG. 3 is a schematic top view of the grinding mechanism of the present invention;
fig. 4 is a schematic view of the entire structure of the clamping mechanism of the present invention.
In the figure: 1. a base; 2. a side plate; 3. a clamping mechanism; 4. a polishing mechanism; 31. a lower clamp; 32. a lower groove; 33. an upper clamp; 34. an upper groove; 35. a first tooth; 36. a second tooth; 37. a third tooth; 38. a spring; 39. a sliding plate; 310. inserting plates; 41. a first fixing plate; 42. a first slider; 43. a first servo motor; 44. a first guide bar; 45. a first lead screw; 46. a second fixing plate; 47. a second lead screw; 48. a second guide bar; 49. grinding disc; 410. mounting a plate; 411. a second slider; 412. a third servo motor; 413. a second servo motor; 414. a third fixing plate; 415. a third slider; 416. and a third screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a method for manufacturing a mould-proof and fire-resistant MPP cable duct includes the following steps:
step one, weighing the following raw materials in parts by weight: 100 portions of polypropylene, 3 to 10 portions of reinforcing master batch, 0.1 to 5 portions of compatilizer, 0.1 to 5 portions of nucleating agent, 0.1 to 5 portions of antioxidant, 0.1 to 5 portions of impact resistant agent and 0.1 to 5 portions of mildew preventive;
step two, putting the raw materials into a stirrer together, stirring at the speed of 600-;
putting the obtained blend into a double-screw extruder, and carrying out melting, plasticizing, shearing and granulating processes to obtain a primary cable pipeline;
and step four, placing the primary cable duct on a grinding machine for grinding, firstly placing the primary cable duct on a lower clamp, then covering the lower clamp, inserting the inserting plate between the sliding plate and the lower clamp, loosening the spring, fixing the primary cable duct through the matching of the second teeth, the first teeth and the third teeth, then driving a second servo motor to drive a second lead screw to rotate, further driving the mounting plate and the grinding disc to descend through a second sliding block, and grinding the disc to grind so as to finally obtain the MPP cable duct.
The mildew preventive is prepared by the following steps:
(1) preparing raw materials: attapulgite clay and 0.8mol/L nitric acid solution; 0.03-0.07 mol/L of copper nitrate solution;
(2) acid activation: mixing attapulgite clay and 0.8mol/L nitric acid solution according to a solid-to-liquid ratio of 1:9, stirring uniformly in a mashing machine at 15000rpm for 0.2min, and then reacting for 5-6 hours at 50 ℃; stirring at 160 +/-10 rpm during the reaction process;
(3) centrifuging and drying for the first time: dehydrating by using a centrifuge after the reaction is finished, washing twice by using distilled water according to the solid-to-liquid ratio of 1:9, centrifuging, and drying at 105 +/-3 ℃;
(4) loading: mixing the attapulgite clay dried in the step (3) with 0.03-0.07 mol/L copper nitrate solution according to a solid-to-liquid ratio of 1:9, uniformly stirring in a crusher at 15000rpm for 0.5min, and then reacting for 5-6 hours at 80 +/-3 ℃; stirring at 160 +/-10 rpm during the reaction process;
(5) and (3) centrifuging and drying for the second time: after the reaction, the mixture was centrifuged, dried at 105. + -. 3 ℃ and pulverized to 200 mesh and 325 mesh.
The polypropylene is at least one of block copolymerization polypropylene or isotactic copolymerization polypropylene.
The molecular weight of the polypropylene block copolymer polypropylene is 100-140 ten thousand, and the melt flow rate is 0.2-2.0g/10 min.
The reinforced master batch is a blend comprising 10-20 parts of active talcum powder, 5-15 parts of PPH, 1-3 parts of coupling agent and 1-2 parts of dispersing agent, and is put into a double-screw extruder to be melted, plasticized, sheared, granulated and the like to obtain the reinforced modified master batch.
The compatilizer is a graft block copolymerization PP compatilizer; the nucleating agent is a beta nucleating agent; the antioxidant is a blending granulation material of linear low density polyethylene and the antioxidant; the anti-impact agent is high-density polyethylene.
The bacteriostatic circle method is adopted to measure the mildew-proof effect of the invention on escherichia coli and candida albicans. Test results show that the radius of the inhibition zone of the compound preparation for escherichia coli is 1.5-1.9mm, and the radius of the inhibition zone for candida albicans is 1.5-1.8 mm.
The grinding machine comprises the following working steps: the method comprises the steps of firstly placing a primary cable duct on a lower clamp, then covering the lower clamp, inserting a plugboard between a sliding plate and the lower clamp, loosening a spring, fixing the primary cable duct through the matching of second teeth, first teeth and third teeth, then driving a first servo motor, driving a first lead screw to rotate, driving a polishing disc to move back and forth through a first sliding block, driving a third servo motor, driving the third lead screw to rotate, driving a polishing disc to move horizontally through a third sliding block, then driving a second servo motor, driving a second lead screw to rotate, further driving a mounting plate and the polishing disc to descend through a second sliding block, rotating the polishing disc to polish, and finally obtaining the MPP cable duct.
The polisher comprises a base 1, a side plate 2, a clamping mechanism 3 and a polishing mechanism 4, the side plate 2 is symmetrically installed at the top of the base 1, the top center of the base 1 is provided with the clamping mechanism 3, the clamping mechanism 3 comprises a lower clamp 31, a lower groove 32, an upper clamp 33, an upper groove 34, a first tooth 35, a second tooth 36, a third tooth 37, a spring 38, a sliding plate 39 and an inserting plate 310, the lower clamp 31 is fixed at the top of the base 1, the lower groove 32 is formed at the top of the lower clamp 31, the first tooth 35 is fixedly installed at one side of the lower clamp 31, the upper clamp 33 is movably linked at one end of the top of the lower clamp 31, the upper groove 34 is formed at the bottom of the upper clamp 33, the inserting plate 310 is fixedly installed at one end of the bottom of the upper clamp 33, the second tooth 36 is fixedly installed at two sides of the inserting plate 310, one side of the spring 38 is installed on the side, a sliding plate 39 is fixedly mounted on the other side of the spring 38, a third tooth 37 is fixedly mounted on one side of the sliding plate 39, which is far away from the spring 38, the sliding plate 39 is connected with the base 1 in a sliding manner, and the second tooth 36 is matched with the third tooth 37 and the first tooth 35;
the polishing mechanisms 4 are fixedly mounted on the tops of the two side plates 2, each polishing mechanism 4 comprises a first fixing plate 41, a first sliding block 42, a first servo motor 43, a first guide rod 44, a first screw rod 45, a second fixing plate 46, a second screw rod 47, a second guide rod 48, a polishing disc 49, a mounting plate 410, a second sliding block 411, a third servo motor 412, a second servo motor 413, a third fixing plate 414, a third sliding block 415 and a third screw rod 416, the two first fixing plates 41 are respectively mounted on the two side plates 2, a first servo motor 43 is fixedly arranged on one side of the first fixing plate 41, an output shaft of the first servo motor 43 is connected with a first screw rod 45, the first screw rod 45 penetrates through the first sliding block 42 and is rotatably connected with the first fixing plate 41, first guide rods 44 are symmetrically arranged on two sides of the first screw rod 45, and the first guide rods 44 penetrate through the first sliding block 42; a third fixing plate 414 is fixedly mounted on the first slider 42, a third servo motor 412 is fixedly mounted on one side of the third fixing plate 414, an output shaft of the third servo motor 412 is connected with a third screw rod 416, the third screw rod 416 penetrates through the third slider 415 and is rotatably connected with the third fixing plate 414, a second fixing plate 46 is vertically mounted on the third slider 415, a second servo motor 413 is fixedly mounted on one side of the second fixing plate 46, an output shaft of the second servo motor 413 is connected with a second screw rod 47, the second screw rod 47 penetrates through the second slider 411 and is rotatably connected with the second fixing plate 46, second guide rods 48 are symmetrically mounted on two sides of the second screw rod 47, the second guide rods 48 penetrate through the second slider 411, a mounting plate 410 is horizontally mounted on one side of the second slider 411, a polishing disc 49 is arranged at the bottom of the mounting plate 410, the grinding disc 49 is driven by a motor.
The working principle of the invention is as follows: the method comprises the steps of firstly placing a primary cable duct on a lower clamp, then covering the lower clamp, inserting a plugboard between a sliding plate and the lower clamp, loosening a spring, fixing the primary cable duct through the matching of second teeth, first teeth and third teeth, then driving a first servo motor, driving a first lead screw to rotate, driving a polishing disc to move back and forth through a first sliding block, driving a third servo motor, driving the third lead screw to rotate, driving a polishing disc to move horizontally through a third sliding block, then driving a second servo motor, driving a second lead screw to rotate, further driving a mounting plate and the polishing disc to descend through a second sliding block, rotating the polishing disc to polish, and finally obtaining the MPP cable duct.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (7)
1. The preparation method of the mould-proof fire-resistant MPP cable conduit is characterized by comprising the following steps of:
step one, weighing the following raw materials in parts by weight: 100 portions of polypropylene, 3 to 10 portions of reinforcing master batch, 0.1 to 5 portions of compatilizer, 0.1 to 5 portions of nucleating agent, 0.1 to 5 portions of antioxidant, 0.1 to 5 portions of impact resistant agent and 0.1 to 5 portions of mildew preventive;
step two, putting the raw materials into a stirrer together, stirring at the speed of 600-;
putting the obtained blend into a double-screw extruder, and carrying out melting, plasticizing, shearing and granulating processes to obtain a primary cable pipeline;
and step four, placing the primary cable duct on a grinding machine for grinding, firstly placing the primary cable duct on a lower clamp, then covering the lower clamp, inserting the inserting plate between the sliding plate and the lower clamp, loosening the spring, fixing the primary cable duct through the matching of the second teeth, the first teeth and the third teeth, then driving a second servo motor to drive a second lead screw to rotate, further driving the mounting plate and the grinding disc to descend through a second sliding block, and grinding the disc to grind so as to finally obtain the MPP cable duct.
2. The method for manufacturing a mould-proof and fire-resistant MPP cable duct according to claim 1, wherein the mould inhibitor is prepared by the following steps:
(1) preparing raw materials: attapulgite clay and 0.8mol/L nitric acid solution; 0.03-0.07 mol/L of copper nitrate solution;
(2) acid activation: mixing attapulgite clay and 0.8mol/L nitric acid solution according to a solid-to-liquid ratio of 1:9, stirring uniformly in a mashing machine at 15000rpm for 0.2min, and then reacting for 5-6 hours at 50 ℃; stirring at 160 +/-10 rpm during the reaction process;
(3) centrifuging and drying for the first time: dehydrating by using a centrifuge after the reaction is finished, washing twice by using distilled water according to the solid-to-liquid ratio of 1:9, centrifuging, and drying at 105 +/-3 ℃;
(4) loading: mixing the attapulgite clay dried in the step (3) with 0.03-0.07 mol/L copper nitrate solution according to a solid-to-liquid ratio of 1:9, uniformly stirring in a crusher at 15000rpm for 0.5min, and then reacting for 5-6 hours at 80 +/-3 ℃; stirring at 160 +/-10 rpm during the reaction process;
(5) and (3) centrifuging and drying for the second time: after the reaction, the mixture was centrifuged, dried at 105. + -. 3 ℃ and pulverized to 200 mesh and 325 mesh.
3. The method for manufacturing the MPP cable duct of claim 1, wherein the polypropylene is at least one of block co-polypropylene or isotactic co-polypropylene.
4. The method for preparing the MPP cable conduit as claimed in claim 1, wherein the polypropylene is block copolymer polypropylene with molecular weight of 100-140 ten thousand and melt flow rate of 0.2-2.0g/10 min.
5. The method for preparing the mould-proof and fire-resistant MPP cable conduit according to claim 1, wherein the reinforcing master batch is a blend comprising 10-20 parts of active talcum powder, 5-15 parts of PPH, 1-3 parts of coupling agent and 1-2 parts of dispersing agent, and the blend is put into a double-screw extruder to be melted, plasticized, sheared, granulated and the like to obtain the reinforcing modified master batch.
6. The method for manufacturing the MPP cable duct with the mildew resistance and the fire resistance as set forth in claim 1, wherein the compatibilizer is a graft block copolymer (PP) compatibilizer; the nucleating agent is a beta nucleating agent; the antioxidant is a blending granulation material of linear low density polyethylene and the antioxidant; the anti-impact agent is high-density polyethylene.
7. The method for manufacturing the mould-proof and fire-resistant MPP cable duct according to claim 1, wherein the grinding machine comprises the following working steps: the method comprises the steps of firstly placing a primary cable duct on a lower clamp, then covering the lower clamp, inserting a plugboard between a sliding plate and the lower clamp, loosening a spring, fixing the primary cable duct through the matching of second teeth, first teeth and third teeth, then driving a first servo motor, driving a first lead screw to rotate, driving a polishing disc to move back and forth through a first sliding block, driving a third servo motor, driving the third lead screw to rotate, driving a polishing disc to move horizontally through a third sliding block, then driving a second servo motor, driving a second lead screw to rotate, further driving a mounting plate and the polishing disc to descend through a second sliding block, rotating the polishing disc to polish, and finally obtaining the MPP cable duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934221.9A CN110669290A (en) | 2019-09-29 | 2019-09-29 | Preparation method of mildew-proof fire-resistant MPP cable conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934221.9A CN110669290A (en) | 2019-09-29 | 2019-09-29 | Preparation method of mildew-proof fire-resistant MPP cable conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110669290A true CN110669290A (en) | 2020-01-10 |
Family
ID=69080073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934221.9A Pending CN110669290A (en) | 2019-09-29 | 2019-09-29 | Preparation method of mildew-proof fire-resistant MPP cable conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110669290A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104351250A (en) * | 2014-10-30 | 2015-02-18 | 四川明星电缆股份有限公司 | Preparation method of mildew-proof auxiliary for cable material |
| CN106589610A (en) * | 2017-02-16 | 2017-04-26 | 深圳市博富隆新材料科技有限公司 | MPP electric power pipe polymer and preparation method thereof |
| CN107189318A (en) * | 2017-07-05 | 2017-09-22 | 湖北金牛管业有限公司 | A kind of power cable sheath special material for pipeline and preparation method thereof |
| CN108067956A (en) * | 2016-11-10 | 2018-05-25 | 天津市昊航复合管业有限公司 | A kind of inner wall trimming device of composite steel tube |
| CN109486001A (en) * | 2018-10-26 | 2019-03-19 | 安庆市悦发管业有限公司 | A kind of corrosion-resistant MPP power cable protecting pipe material and preparation method thereof |
| CN208663375U (en) * | 2018-07-06 | 2019-03-29 | 湖南工业职业技术学院 | A kind of grinding apparatus with self-feeding and refrigerating function |
-
2019
- 2019-09-29 CN CN201910934221.9A patent/CN110669290A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104351250A (en) * | 2014-10-30 | 2015-02-18 | 四川明星电缆股份有限公司 | Preparation method of mildew-proof auxiliary for cable material |
| CN108067956A (en) * | 2016-11-10 | 2018-05-25 | 天津市昊航复合管业有限公司 | A kind of inner wall trimming device of composite steel tube |
| CN106589610A (en) * | 2017-02-16 | 2017-04-26 | 深圳市博富隆新材料科技有限公司 | MPP electric power pipe polymer and preparation method thereof |
| CN107189318A (en) * | 2017-07-05 | 2017-09-22 | 湖北金牛管业有限公司 | A kind of power cable sheath special material for pipeline and preparation method thereof |
| CN208663375U (en) * | 2018-07-06 | 2019-03-29 | 湖南工业职业技术学院 | A kind of grinding apparatus with self-feeding and refrigerating function |
| CN109486001A (en) * | 2018-10-26 | 2019-03-19 | 安庆市悦发管业有限公司 | A kind of corrosion-resistant MPP power cable protecting pipe material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100482733C (en) | Beta-crystal polypropylene composition and its preparing method | |
| CN102532746B (en) | Soft and hard co-extrusion one-step forming method of un-plasticized polyvinyl chloride (U-PVC) profiled material and PVC adhesive tape | |
| CN114437457B (en) | Polypropylene material, and preparation method and application thereof | |
| CN102492213B (en) | Rotational molding grade cross-linked polyethylene wear-resistant composite and preparation method thereof | |
| CN104629190A (en) | Modified polypropylene composite material for cable guides and preparation method thereof | |
| CN101649081B (en) | Method for manufacturing halogen-free fire-retardant polyethylene material | |
| CN103642161A (en) | High impact chlorinated polyvinyl chloride pipe material and preparation method thereof | |
| CN110669290A (en) | Preparation method of mildew-proof fire-resistant MPP cable conduit | |
| CN110789088A (en) | high-Vicat softening point power cable pipe and production process thereof | |
| CN102775798A (en) | Epoxy resin waterproof material and preparation method thereof | |
| CN113337041B (en) | Power cable sheath pipe with high insulativity | |
| CN202543125U (en) | System for producing TPU (Thermoplastic Polyurethane Elastomer) by continuous method | |
| CN110564148B (en) | Injection molding grade nylon engineering plastic for household appliance shell and preparation method thereof | |
| CN114456487B (en) | Polypropylene composition and application thereof | |
| CN102702643A (en) | Water-resistant wrapping belt material and preparation method thereof | |
| CN105860356A (en) | Octagonal cable protection pipe and preparation method thereof | |
| KR101126285B1 (en) | Preparation method of clay-dispersed polyolefin nanocomposites | |
| CN115558213A (en) | Low-dielectric high-thermal-conductivity high-strength composite film and preparation method thereof | |
| CN116589785A (en) | Flame-retardant technology and processing equipment for halogen-free low-smoke polyolefin cable | |
| CN115612224A (en) | Polyvinyl chloride composite material and preparation method thereof | |
| CN112080088A (en) | Preparation method of insulating polyvinyl chloride cable protection pipe | |
| CN112123727A (en) | Non-excavation type high-impact MPP power cable protection pipe and preparation method thereof | |
| CN111793295A (en) | High-strength wear-resistant PVC (polyvinyl chloride) threading pipe and production process thereof | |
| CN104650440A (en) | Preparation method of nucleating agent modified polyethylene tube | |
| CN111909475A (en) | High-wear-resistance polyvinyl chloride special cable material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
|
| RJ01 | Rejection of invention patent application after publication |